Portable heater



FIG. 1 is a rear perspective view of a portable heater showing my new design

FIG. 2 is a left-side view of the portable heater of FIG. 1.

FIG. 3 is a right-side view of the portable heater of FIG. 1.

FIG. 4 is a front view of the portable heater of FIG. 1.

FIG. 5 is a rear view of the portable heater of FIG. 1.

FIG. 6 is a top view of the portable heater of FIG. 1; and,

FIG. 7 is a bottom view of the portable heater of FIG. 1.

The portions of the portable heater shown in broken lines are included for the purpose of illustrating environment and form no part of the claimed design. The portions of the portable heater shown in broken lines having unequal length segments illustrate the boundary of the claimed design and form no part of the claimed design. 

CLAIM I claim the ornamental design for a portable heater, as shown and described. 